R. Nimnu, J, G O Aigbadon, and F Ogbikaya. “Foraminiferal Biostratigrpahy of Oshi-13 Field, Coastal and Central Swamp Depobelt, Niger Delta Basin, Nigeria”. International Journal of Advanced Geosciences 6, no. 1 (May 30, 2018): 127–132. Accessed November 23, 2024. https://sciencepubco.com/index.php/IJAG/article/view/10907.